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Types of Assemblies
gcto.DLL Dynamic Link Library
gcto.EXE Windows Executable File
Types of Audio Files
gcto.A52 Dolby Digital AC-3 Compressed Audio File
gcto.AAC Advanced Audio Coding Compressed Audio File
gcto.AC3 Dolby Digital AC-3 Compressed Audio File
gcto.AIF Audio Interchange Format File
gcto.APE Monkey's Audio Compressed Audio File
gcto.AU Sun / NeXT Audio File
gcto.DTS Digital Theater Systems Audio File
gcto.FLAC Free Lossless Audio Codec Compressed Audio FIle
gcto.M4A MPEG-4 Audio File
gcto.M4P Protected AAC File
gcto.MID MIDI Audio Sequence
gcto.MKA Matroska Audio Stream
gcto.MOD MOD Audio File
gcto.MP1 MPEG-1 Audio Layer I
gcto.MP2 MPEG-1 Audio Layer II
gcto.MP3 MPEG-1 Audio Layer 3
gcto.OGG Ogg Multimedia Container File
gcto.OMA OpenMG Audio File
gcto.RA RealMedia Audio File
gcto.RAM RealMedia Audio File
gcto.SND Sun / NeXT Audio File
gcto.SPX Ogg Speex Audio File
gcto.WAV Waveform Audio
gcto.WMA Windows Media Audio File
gcto.WV WavPack Compressed Audio File
gcto.XM Extended Module Audio File
Compressed Files Compressed files or archives contain one or more files or folders that have been compressed to take up less space on disk. Compression is especially useful when transferring files over the internet as it saves bandwidth and reduces the time required to download files. The most common compressed file extensions are .ZIP (Zip Compressed Archive) and .RAR (WinRAR Compressed Archive). Types of Compressed Files
gcto.7Z 7-Zip Compressed Archive
gcto.ACE Ace Compressed Archive
gcto.ARJ Archived by Robert Jung Compressed Archive
gcto.BZ BZip Compressed Archive
gcto.BZ2 BZip2 Compressed Archive
gcto.CAB Cabinet Compressed Archive
gcto.CPIO CPIO Compressed Archive
gcto.GZ GNU Zip Compressed Archive
gcto.JAR Java Archive
gcto.LHA LHA Compressed Archive
gcto.LZH Lempel-Ziv and Haruyasu Compressed Archive
gcto.R00 WinRAR Archive Partial File
gcto.RAR WinRAR Compressed Archive
gcto.REV WinRAR Recovery Volume
gcto.TAR TAR Archive
gcto.TAZ TAR Compressed Archive
gcto.TBZ BZip Compressed Tar Archive
gcto.TBZ2 BZip2 Compressed Tar Archive
gcto.TGZ GZip Compressed Tar Archive
gcto.UU Uuencoded File
gcto.UUE Uuencoded File
gcto.XXE Compressed ASCII Archive
gcto.Z Unix Compressed Archive
gcto.ZIP Zip Compressed Archive
Types of Data Files
gcto.CSV Comma Separated Value Database
gcto.DAT Data File
gcto.DBF dBASE Database
gcto.ICL Icon Library
gcto.MNL MathML Data
gcto.NWP Magentic Content File
gcto.ODB ODF Database
gcto.ODF ODF Formula
gcto.PART Partially Downloaded File
gcto.SMF StarMath Data
gcto.SXM OpenOffice.org 1.0 Formula
gcto.TMP Temporary File
gcto.TXT Comma Separated Value Database
gcto.XLS Comma Separated Value Database
Disk Images Disk Images contain all of the data from a disk. A disk can be a CD, DVD, thumb drive, hard drive, memory card, or any other type of media. Common types of disk images are .ISO CD images and .BIN disk images. Types of Disk Images
gcto.B5I B5I Disk Image
gcto.B5T B5T Disk Image
gcto.BIN Binary Disk Image
gcto.BWI BlinkWrite Disk Image
gcto.BWT BlinkWrite Disk Image
gcto.C2D C2D Disk Image
gcto.CCD CCD Disk Image
gcto.CD CD Disk Image
gcto.CDI CD Image File
gcto.CDR Raw CD Audio File
gcto.CIF CIF Disk Image
gcto.DAO DAO Disk Image
gcto.DI Raw CD Audio File
gcto.DMG Mac OS X Disk Image
gcto.DVD DVD Disk Image
gcto.FCD FCD Disk Image
gcto.FLP FLP Disk Image
gcto.GCD GCD Disk Image
gcto.GCM GameCube Image File
gcto.GI Global Disk Image
gcto.IBB IBB Disk Image
gcto.IBP IBP Disk Image
gcto.IBQ IsoBuster Disk Image
gcto.IMG Disk Image File
gcto.ISO ISO 9660 Disk Image
gcto.LST DVD Image List
gcto.MDF MDF Disk Image
gcto.MDS MDS CD/DVD Image
gcto.NRG Nero Disk Image
gcto.P01 P01 Disk Image
gcto.PDI InstantCopy Disc Image
gcto.PXI PXI Disk Image
gcto.TAO TAO Disk Image
gcto.UDI Universal Disk Image
gcto.VC4 VC4 Disk Image
gcto.VCD Farstone Virtual Drive
gcto.VDI Virtuo CD Manager Disk Image
Types of Documents
gcto.ABW AbiWord Document
gcto.CHM Compiled Help File
gcto.DJV DjVu Document
gcto.DJVU DjVu Document
gcto.DOC Corel WordPerfect Document
gcto.DOC Microsoft Word Document
gcto.DOCM Microsoft Word XML Document
gcto.DOCX Microsoft Open XML Word Document
gcto.GAN GanttProject File
gcto.HWP Hangul Word Processor Document
gcto.LOG Log File
gcto.ODM ODF Master Document
gcto.ODT ODF Text Document
gcto.OTH
gcto.PDB Palm AportisDoc Document
gcto.PDF Portable Document Format Document
gcto.PSW Pocket Word Document
gcto.RTF Rich Text Format Document
gcto.SDW StarWriter Document
gcto.SGL StarWriter Master Document
gcto.STW OpenOffice.org 1.0/value/gcto Template
gcto.SXG OpenOffice.org 1.0 Master Document
gcto.SXW OpenOffice.org 1.0 Text Document
gcto.TXT Text Document
gcto.UOF Unified Office Format Document
gcto.UOT Unified Office Format Document
gcto.WPD WordPerfect Document
gcto.WPS Microsoft Works Document
gcto.XML DocBook Document
Types of Images
gcto.!S ZX Spectrum Hobetta Image
gcto.$C ZX Spectrum Hobetta Image
gcto.$S ZX Spectrum Hobetta Image
gcto.001 Ricoh Fax Image
gcto.001 SmartFax Image
gcto.16 LSS16 Image
gcto.2BP Pocket PC Bitmap Image
gcto.2D Amapi Image
gcto.301 Brooktrout 301 Image
gcto.3FR Hasselblad 3F RAW Image
gcto.411 Mavica Image
gcto.4BIT GoDot Image
gcto.4BT GoDot Image
gcto.73I TI Bitmap Image
gcto.82I TI Bitmap Image
gcto.83I TI Bitmap Image
gcto.85I TI Bitmap Image
gcto.86I TI Bitmap Image
gcto.89I TI Bitmap Image
gcto.92I TI Bitmap Image
gcto.A64 Artist 64 Image
gcto.ABS Optocat Image
gcto.ACE Aces200 Image
gcto.ACR Dicom Image
gcto.AFX Auto F/X Image
gcto.ALIAS Alias Image File
gcto.ALS Alias Image File
gcto.AMI Amica Paint Image
gcto.ANI Animated Mouse Cursor Image
gcto.ANI Windows Animated Cursor
gcto.ANV AirNav Image
gcto.APX Photopaint Image
gcto.ARF ARF Image
gcto.ARN Astronomical Research Network Image
gcto.ART Art Director Image
gcto.ART Artisan Image
gcto.ART Advanced Art Studio Image
gcto.ART Pfs Art Publisher Image
gcto.ATK Andrew Toolkit raster object Image
gcto.ATT AT&T Group 4 Image
gcto.AVS Stardent AVS X Image
gcto.B&W ImageLab Image
gcto.B16 PCO Image
gcto.B3D B3D (images) Image
gcto.BFL BFLI Image
gcto.BFLI BFLI Image
gcto.BFX Bfx Bitware Image
gcto.BGA OS/2 Bitmap Image
gcto.BIE JBIG Image
gcto.BIF byLight Image
gcto.BIG Cartes Michelin Image
gcto.BLD MegaPaint Image
gcto.BLK Amiga IFF Image
gcto.BM X11 Bitmap Image
gcto.BMC Embroidery Image
gcto.BMF BMF Image
gcto.BMP Windows Bitmap Image
gcto.BMP Alpha Microsystems BMP Image
gcto.BMS Playback Bitmap Sequence Image
gcto.BOB Bob Raytracer Image
gcto.BPX Truevision Targa Image
gcto.BRK Brooktrout 301 Image
gcto.BRT Brooktrout 301 Image
gcto.BS Printfox/Pagefox Image
gcto.BTN JustButtons animated bitmap Image
gcto.BUM Poser Bump Image
gcto.BW Silicon Graphics RGB Image
gcto.B_W ImageLab Image
gcto.C4 Edmics Image
gcto.CAL CALS Raster Image
gcto.CALS CALS Raster Image
gcto.CAM Casio QV-10/100 Camera Image
gcto.CAN Canon Navigator Fax Image
gcto.CAR NeoBook Cartoon Image
gcto.CAT Photomatrix Image
gcto.CBM Fuzzy bitmap Image
gcto.CDR Corel Draw Bitmap (preview) Image
gcto.CDU CDU Paint Image
gcto.CE Computer Eyes, Digital Vision Image
gcto.CE1 ComputerEyes Raw Image
gcto.CE2 ComputerEyes Raw Image
gcto.CEL Kiss Cel Image
gcto.CFT Optigraphics Image
gcto.CIN Kodak Cineon Image
gcto.CIT Intergraph Format Image
gcto.CLO Cloe Ray-Tracer Image
gcto.CLOE Cloe Ray-Tracer Image
gcto.CLP Windows Clipboard Image
gcto.CLP PC Paint / Pictor Page Image
gcto.CLP GoDot Image
gcto.CMP Discorp CMP Image
gcto.CMT Chinon ES-1000 digital camera Image
gcto.CMU CMU Window Manager Image
gcto.CMX Corel Metafile Exchange (preview) Image
gcto.CP8 CP8 256 Gray Scale Image
gcto.CPI Calamus Image
gcto.CPT CorelDraw Photopaint Image
gcto.CR2 Raw Image File
gcto.CRG Calamus Image
gcto.CRW Raw Image File
gcto.CT Iris CT Image
gcto.CUR Mouse Cursor Image
gcto.CURSOR Sun Icon/Cursor
gcto.CUT Dr Halo Image
gcto.CVP Portrait Image
gcto.DAT SPOT Image
gcto.DCM Dicom Image
gcto.DCR Raw Image File
gcto.DCX Multipage PCX Image
gcto.DCX Zsoft Multi-page Paintbrush Image
gcto.DCX Zsoft Publisher's Paintbrush Image
gcto.DD Doodle C64 Image
gcto.DDS Microsoft DirectDraw Surface
gcto.DIA Dia UML Diagram
gcto.DIB Windows Bitmap Image
gcto.DIS DKB Ray-Tracer Image
gcto.DNG Raw Image File
gcto.DOO Doodle Atari Image
gcto.DPX DPX Image
gcto.DRZ Draz Paint Image
gcto.DWF AutoCAD Drawing
gcto.DWG AutoCAD Drawing
gcto.DXF AutoCAD Drawing eXchange Format Drawing
gcto.DXF AutoCAD Drawing
gcto.ECC Ecchi Image
gcto.EI Electric Image
gcto.EIDI Electric Image
gcto.EIF Eroiica Image
gcto.EMF Enhanced Metafile Format Image
gcto.EPA Award Bios Logo
gcto.EPS Encapsulated PostScript Image
gcto.ESM Enhance Simplex Image
gcto.FAC Usenix FaceServer Image
gcto.FACE Usenix FaceServer Image
gcto.FAX Fax Group 3 Image
gcto.FBM Fuzzy bitmap Image
gcto.FFF Maggi Hairstyles & Cosmetics Image
gcto.FI Flash Image
gcto.FIG XFig Drawing
gcto.FIT FIT Image
gcto.FITS Flexible Image Transport System Image
gcto.FLC Autodesk Animator Image
gcto.FLI Autodesk Animator Image
gcto.FPG DIV Game Studio Multi Map Image
gcto.FRE Male Normal CT Image
gcto.FRM Megalux Frame
gcto.FRM PhotoFrame
gcto.FSH EA Sports FSH Image
gcto.FSY PhotoFantasy Image
gcto.FTS Flexible Image Transport System Image
gcto.FXO WinFAX Image
gcto.FXS WinFAX Image
gcto.G3 Fax Group 3 Image
gcto.G3N Imaging Fax Image
gcto.G4 Access Image
gcto.GAF Total Annihilation Image
gcto.GB Printfox/Pagefox Image
gcto.GBR Gimp Brush Image
gcto.GEM Digital Research (GEM Paint) Image
gcto.GEO GeoPaint Image
gcto.GG Koala Paint (Compressed) Image
gcto.GIF Graphics Interchange Format Image
gcto.GIFF CompuServe GIF Image
gcto.GM Autologic Image
gcto.GM2 Autologic Image
gcto.GM4 Autologic Image
gcto.GRB HP-48/49 GROB Image
gcto.GREY Raw Image
gcto.GRO HP-48/49 GROB Image
gcto.GRY Raw Image
gcto.HDR Apollo HDRU Image
gcto.HDR ArcInfo Binary Image
gcto.HDRU Apollo HDRU Image
gcto.HED Hi-Eddi Image
gcto.HF HF Image
gcto.HIR Hires C64 Image
gcto.HPGL HP Graphics Language Image
gcto.HPI Hemera Photo Image
gcto.HR TRS 80 Image
gcto.HRU HRU Image
gcto.HRZ Slow Scan Television Image
gcto.HTA Hemera Thumbs Image
gcto.I17 Pixel Power Collage Image
gcto.I18 Pixel Power Collage Image
gcto.IB7 Pixel Power Collage Image
gcto.ICA IOCA Image
gcto.ICB Image Capture Board Image
gcto.ICN RIPTerm Image
gcto.ICNS Macintosh Icon File
gcto.ICO Windows Icon File
gcto.ICO Sun Icon/Cursor
gcto.ICON Sun Icon/Cursor
gcto.IDC Core IDC Image
gcto.IF9 Pixel Power Collage Image
gcto.IFF Explore (TDI) & Maya Image
gcto.IFF Sun TAAC Image
gcto.IFF Amiga IFF Image
gcto.IIM Inshape Image
gcto.IIMG Interleaf Image
gcto.ILBM Deluxe Paint, Electronic Arts Image
gcto.IM AIM Grey Scale Image
gcto.IM5 IM5 (Visilog) Image
gcto.IMA AIM Grey Scale Image
gcto.IMG ADEX Image
gcto.IMG Digital Research (GEM Paint) Image
gcto.IMG Imaging Technology Image
gcto.IMG Img Software Set Image
gcto.IMG Microtek Eyestar Image
gcto.IMG Planetary Data System Image
gcto.IMG Radiance Image
gcto.IMG Sharp GPB Image
gcto.IMG Starbase Image
gcto.IMG Vivid Ray-Tracer Image
gcto.IMG Autocad CAD-Camera Image
gcto.IMG Datacopy Image
gcto.IMG Vicar Image
gcto.IMT IMNET Image
gcto.INFO Amiga icon
gcto.IOCA IOCA Image
gcto.IPG Mindjongg Format Image
gcto.IPH InterPaint (Hires) Image
gcto.IPT InterPaint (Multicolor) Image
gcto.IRIS Iris graphic Image
gcto.IRIS Silicon Graphics RGB Image
gcto.ISH Image Speeder Image
gcto.ISM Image System (Multicolor) Image
gcto.ISS ISS Image
gcto.ITG Intergraph Format Image
gcto.IVB Truevision Targa Image
gcto.J JPEG / JFIF Image
gcto.J2K LuraWave JPEG-2000 Format Image
gcto.J6I Ricoh Digital Camera Image
gcto.JBF PaintShopPro Browser Cache File
gcto.JBG JBIG Image
gcto.JBIG JBIG Image
gcto.JFIF Joint Photographic Experts Group Image
gcto.JIF Joint Photographic Experts Group Image
gcto.JIF Jeff's Image Format Image
gcto.JJ Doodle C64 (Compressed) Image
gcto.JLS JPEG-LS Image
gcto.JNG Jpeg Network Graphics Image
gcto.JP2 LuraWave JPEG-2000 Format Image
gcto.JPC LuraWave JPEG-2000 Code Stream Image
gcto.JPE Joint Photographic Experts Group Image
gcto.JPEG Joint Photographic Experts Group Image
gcto.JPG Joint Photographic Experts Group Image
gcto.JPS Stereo Image
gcto.JPX LuraWave JPEG-2000 Format Image
gcto.JTF Hayes JTFax Image
gcto.K25 Kodak DC25 Camera Image
gcto.KDC Raw Image File
gcto.KFX Kofax Group 4 Image
gcto.KOA Koala Paint Image
gcto.KPS IBM Kips Image
gcto.KQP Konica Camera File
gcto.LBM Deluxe Paint, Electronic Arts Image
gcto.LDA LaserData Image
gcto.LFF LucasFilm Format Image
gcto.LIF Homeworld Texture
gcto.LVP LView Pro Image
gcto.LWI Light Work Image
gcto.M8 Heretic II MipMap Image
gcto.MAC Mac Paint Image
gcto.MACP Mac Paint Image
gcto.MAG MAGIchan Graphics Image
gcto.MAP DIV Game Studio Map Image
gcto.MAP Fenix Map Image
gcto.MBFAVS Stardent AVS X Image
gcto.MBFS Stardent AVS X Image
gcto.MBM Psion Serie 5 Bitmap Image
gcto.MDI Microsoft Document Imaging Image
gcto.MDL Half-Life Model Image
gcto.MGR MGR bitmap Image
gcto.MIF Image Magick file
gcto.MIFF Image Magick file
gcto.MIL Micro Illustrator Uncompressed Image
gcto.MNG Multiple Network Graphics Image
gcto.MPNT Mac Paint Image
gcto.MRF Marks Russel File
gcto.MRW Minolta Raw Image File
gcto.MSK PaintShopPro Mask
gcto.MSP Microsoft Paint Image
gcto.MTV MTV Ray-Tracer Image
gcto.MTX Maw-Ware Textures Image
gcto.NCD CoverDesigner Image
gcto.NCR NCR Image
gcto.NCT CoverDesigner Template
gcto.NEF Raw Image File
gcto.NEO Neochrome (ST & TT) Image
gcto.NGG Nokia Group Graphics Image
gcto.NITF National Imagery Transmission Image
gcto.NLM Nokia Logo File
gcto.NOL Nokia Operator Logo
gcto.NPM Neopaint Mask
gcto.OAZ OAZ Fax Image
gcto.OCP Advanced Art Studio Image
gcto.OFX Olicom Fax Image
gcto.OIL Open Image Library Format Image
gcto.ORF Raw Image File
gcto.OTB Nokia OTA Image
gcto.P64 Picasso 64 Image
gcto.P7 XV Visual Schnauzer Image
gcto.PAC Stad Image
gcto.PAINT Mac Paint Image
gcto.PAN SmoothMove Pan Viewer Image
gcto.PAT Gimp Pattern
gcto.PAT Corel Draw Pattern (preview) Image
gcto.PBM Portable Bitmap Image
gcto.PBM Portable Bitmap Image
gcto.PBT Micro Dynamics MARS Image
gcto.PC1 Degas & Degas Elite Image
gcto.PC2 Degas & Degas Elite Image
gcto.PC3 Degas & Degas Elite Image
gcto.PCC Zsoft Publisher's Paintbrush Image
gcto.PCD Kodak Photo CD Image
gcto.PCL Page Control Language Image
gcto.PCT Mac Pict Image
gcto.PCT NIST ihdr Image
gcto.PCX Zsoft Paintbrush Image
gcto.PD Male MRI Image
gcto.PDB MonkeyCard Image
gcto.PDB MonkeyLogo
gcto.PDB Palm Pilot Image
gcto.PDB Photo Deluxe Image
gcto.PDB TealPaint Image
gcto.PDD Photo Deluxe Image
gcto.PDN Paint.NET Image
gcto.PDS Planetary Data System Image
gcto.PDX Mayura Draw Image
gcto.PE4 Ulead Texture
gcto.PEF Raw Image File
gcto.PFR PaintShopPro Frame
gcto.PG Printfox/Pagefox Image
gcto.PGC Portfolio Graphics Compressed Image
gcto.PGF Portfolio Graphics Image
gcto.PGM Portable Graymap Image
gcto.PHP Adobe PhotoParade Image
gcto.PI Blazing Paddles Image
gcto.PI1 Degas & Degas Elite Image
gcto.PI2 Degas & Degas Elite Image
gcto.PI3 Degas & Degas Elite Image
gcto.PI4 Degas & Degas Elite Image
gcto.PI5 Degas & Degas Elite Image
gcto.PI6 Degas & Degas Elite Image
gcto.PIC Macintosh Quickdraw/Pict Image
gcto.PIC PC Paint / Pictor Page Image
gcto.PIC Pixar Image
gcto.PIC Radiance Image
gcto.PIC Rayshade Image
gcto.PIC Advanced Art Studio Image
gcto.PIC Bio-Rad confocal Image
gcto.PIC Psion Serie 3 Bitmap Image
gcto.PIC Softimage
gcto.PIC Stad Image
gcto.PIC WinMIPS Image
gcto.PICIO Pixar Image
gcto.PICT Macintosh Quickdraw/Pict Image
gcto.PICT2 Macintosh Quickdraw/Pict Image
gcto.PIG Ricoh IS30 Image
gcto.PIX Alias Image File
gcto.PIX Truevision Targa Image
gcto.PIX Vort Image
gcto.PIX ESM Software Pix Image
gcto.PIX PABX Image
gcto.PIXAR Pixar Image
gcto.PLT HP Graphics Language Image
gcto.PM X11 Pixmap Image
gcto.PM PM Image
gcto.PMG Paint Magic Image
gcto.PMP Sony DSC-F1 Cyber-shot Image
gcto.PNG Portable Network Graphic Image
gcto.PNM Portable Image
gcto.PNT Mac Paint Image
gcto.PNTG Mac Paint Image
gcto.PP4 Micrografx Picture Publisher 4.0 Image
gcto.PP5 Micrografx Picture Publisher 5.0 Image
gcto.PPM Portable Pixelmap Image
gcto.PPP Punk Productions Picture
gcto.PR Sun Icon/Cursor
gcto.PRC Picture Gear Pocket Image
gcto.PRF Polychrome Recursive Format Image
gcto.PRI Prisms Image
gcto.PSD Adobe Photoshop Image
gcto.PSE IBM Printer Page Segment Image
gcto.PSF PhotoStudio File
gcto.PSP PaintShopPro Image
gcto.PST Ulead Pattern
gcto.PWP Seattle Film Works multi-image
gcto.PXA Pixia Image
gcto.PXA Pegs Image
gcto.PXB Pixibox Image
gcto.PXR Pixar Image
gcto.PXS Pegs Image
gcto.PZL Puzzle Image
gcto.PZP MGI Photosuite Project Image
gcto.Q0 Q0 Image
gcto.QDV Qdv (Random Dot Software) Image
gcto.QRT Qrt Ray-Tracer Image
gcto.QTI QuickTime Image Format Image
gcto.QTIF QuickTime Image Format Image
gcto.QTL YUV 16Bits Image
gcto.QTL YUV 4:4:4 Image
gcto.QTL YUV 4:1:1 Image
gcto.QTL YUV 4:2:2 Image
gcto.RAD Radiance Image
gcto.RAF Raw Image File
gcto.RAS Sun Raster Image
gcto.RAST Sun Rasterfile
gcto.RAW Raw Image File
gcto.RGB Q0 Image
gcto.RGB Silicon Graphics RGB Image
gcto.RGBA Silicon Graphics RGB Image
gcto.RGH ZZ Rough Image
gcto.RIX ColoRIX Image
gcto.RL4 Windows Bitmap Image
gcto.RL8 Windows Bitmap Image
gcto.RLA Wavefront Raster Image
gcto.RLB Wavefront Raster Image
gcto.RLC Image Systems RLC2 Graphic Image
gcto.RLE ADEX Image
gcto.RLE Intergraph Format Image
gcto.RLE Utah raster Image
gcto.RLE Windows Bitmap Image
gcto.RP Rainbow Painter Image
gcto.RPBM Portable Bitmap Image
gcto.RPGM Portable Greyscale Image
gcto.RPM RunPaint (Multicolor) Image
gcto.RPNM Portable Image
gcto.RPPM Portable Image
gcto.RS Sun Rasterfile
gcto.RSB Red Storm Image
gcto.SAR Saracen Paint Image
gcto.SC2 Msx 2 Screen Image
gcto.SCI SciFax Image
gcto.SCI ColoRIX Image
gcto.SCR Sun Rasterfile
gcto.SCR ZX Spectrum Standard Screen Image
gcto.SCT SciTex Continuous Tone Image
gcto.SCX ColoRIX Image
gcto.SD0 Dali Raw Image
gcto.SD1 Dali Raw Image
gcto.SD2 Dali Raw Image
gcto.SDG Star Office Gallery Image
gcto.SDT SmartDraw 6 Template
gcto.SEQ Stad Image
gcto.SFW Seattle Film Works Image
gcto.SGF StarWriter Graphics Format Image
gcto.SGI Silicon Graphics RGB Image
gcto.SGV StarDraw Image
gcto.SI Softimage
gcto.SIM Aurora Image
gcto.SIR BYU SIR Image
gcto.SIR Solitaire Image Recorder Image
gcto.SJ1 Sega SJ-1 DIGIO Image
gcto.SKF Autodesk SKETCH thumbnail Image
gcto.SKN Skantek Image
gcto.SKP Autodesk SketchUp component Image
gcto.SMP Xionics SMP Image
gcto.SNA ZX Spectrum Snapshot Image
gcto.SPC Spectrum 512 (Compressed) Image
gcto.SPS Spectrum 512 (Smooshed) Image
gcto.SPU Spectrum 512 Image
gcto.SR Sun Rasterfile
gcto.SR2 Sony Raw Image File
gcto.SRF Sony Raw Image File
gcto.SSI SriSun Image
gcto.SSP Axialis Screensaver Image
gcto.ST4 SBIG CCD camera ST-X Image
gcto.ST4 SBIG CCD camera ST-4 Image
gcto.ST5 SBIG CCD camera ST-X Image
gcto.ST6 SBIG CCD camera ST-X Image
gcto.ST7 SBIG CCD camera ST-X Image
gcto.ST8 SBIG CCD camera ST-X Image
gcto.STM PhotoStudio Stamp Image
gcto.STW Neopaint Stamp Image
gcto.STX SBIG CCD camera ST-X Image
gcto.SUL Gfa Raytrace Image
gcto.SUN Sun Rasterfile
gcto.SUNIFF Sun TAAC Image
gcto.SVG Scalable Vector Graphics Image
gcto.SVGZ GZip Compressed Scalable Vector Graphics Image
gcto.SYN Synthetic Universe Image
gcto.SYNU Synthetic Universe Image
gcto.T1 Male MRI Image
gcto.T2 Male MRI Image
gcto.TAAC Sun TAAC Image
gcto.TAP Oric TAP Image
gcto.TARGA Truevision Targa Image
gcto.TDI Explore (TDI) & Maya Image
gcto.TDIM Digital F/X Image
gcto.TEX PaintShopPro Texture
gcto.TG4 TG4 Image
gcto.TGA Truevision Targa Image
gcto.THB KinuPix Skin Image
gcto.TIF Tagged Image File Format Image
gcto.TIFF Tagged Image File Format Image
gcto.TIL Buttonz & Tilez texture
gcto.TILE Eclipse Image
gcto.TIM Sony Playstation TIM Image
gcto.TIM TIFF Revision 6 Image
gcto.TN1 Tiny Image
gcto.TN2 Tiny Image
gcto.TN3 Tiny Image
gcto.TNL Thumbnail Image
gcto.TNY Tiny Image
gcto.TTF Optigraphics Tiled Image
gcto.TUB PaintShopPro Picture Tube Image
gcto.UPI Ulead PhotoImpact Image
gcto.URT Utah raster Image
gcto.UYVY YUV 16Bits Image
gcto.VDA Video Display Adapter Image
gcto.VFF Sun TAAC Image
gcto.VGA Windows Bitmap Image
gcto.VI Jovian VI Image
gcto.VIC Vicar Image
gcto.VICAR Vicar Image
gcto.VID Vidcom 64 Image
gcto.VIF Khoros Visualization Image file
gcto.VIF Verity Image
gcto.VIFF Khoros Visualization Image file
gcto.VIT VITec Image
gcto.VOB Vue d'esprit Image
gcto.VPB Quantel VPB Image
gcto.VST Vista Image
gcto.WAD WAD (Half Life) Image
gcto.WAL Quake Texture
gcto.WAP Wireless Bitmap Image
gcto.WBC WebShots Image
gcto.WBM Wireless Bitmap Image
gcto.WBMP Wireless Bitmap Image
gcto.WBZ WebShots Image
gcto.WFX WinFAX Image
gcto.WPG WordPerfect Graphics Image
gcto.WRL VRML2 Image
gcto.X Stardent AVS X Image
gcto.X11 X Windows System Dump Image
gcto.X3F Raw Image File
gcto.XAR Xara Image
gcto.XBM X Bitmap Image
gcto.XCF Gimp Bitmap Image
gcto.XIF Xerox DIFF Image
gcto.XIM Ximage
gcto.XP0 SecretPhotos Puzzle Image
gcto.XPM X PixMap Image
gcto.XV Khoros Visualization Image file
gcto.XWD X Windows System Dump Image
gcto.YUV YUV 16Bits Image
gcto.YUV YUV 4:1:1 Image
gcto.YUV YUV 4:2:2 Image
gcto.YUV YUV 4:4:4 Image
gcto.ZBR Zoner Zebra Metafile
gcto.ZMF Zoner Callisto Metafile
gcto.[B] Amica Paint Image
Types of Metadata Files
gcto.ABT AbiWord Template
gcto.ASA ASP Configuration File
gcto.ASX Advanced Stream Redirector
gcto.B4S Winamp 3+ Playlist
gcto.BTSEARCH BitTorrent Search File
gcto.BUP DVD Information File
gcto.CGM Computer Graphics Metafile
gcto.CKZ CKZ Checksum File
gcto.CODE eXtensible Stylesheet Language Transformation File
gcto.CONFIG Configuration File
gcto.CRC Cyclic Redundancy Check Checksum File
gcto.CUE Cue Sheet
gcto.DOT Microsoft Word Template
gcto.DOTM Microsoft Word XML Template
gcto.DOTX Microsoft Open XML Word Template
gcto.EMF Enhanced Metafile
gcto.IFO DVD Information File
gcto.INI Initialization File
gcto.M3U MP3 Uniform Resource Locator
gcto.MANIFEST Windows Assembly Manifest File
gcto.MD5 MD5 Checksum File
gcto.MET OS/2 Metafile
gcto.MP TeX Metapost Macro
gcto.NFO Downloaded Program Information
gcto.OTP ODF Presentation Template
gcto.OTS ODF Spreadsheet Template
gcto.OTT ODF Text Document Template
gcto.PAR Parity Checksum File
gcto.PLS Playlist
gcto.POT Microsoft PowerPoint Template
gcto.POTM Microsoft Open XML Macro-Enabled PowerPoint Template
gcto.POTX Microsoft Open XML PowerPoint Template
gcto.SFV SFV Checksum File
gcto.SHAPE Dia Shape File
gcto.SRT DVD Subtitles File
gcto.STC OpenOffice.org 1.0 Spreadsheet Template
gcto.STI OpenOffice.org 1.0 Presentation Template
gcto.STW OpenOffice.org 1.0 Text Document Template
gcto.SVM StarView MetaFile
gcto.TEX TeX PSTricks Macro
gcto.TORRENT BitTorrent Tracker File
gcto.VLC VLC Media Player Data
gcto.VOR StarWriter Template
gcto.VOR StarCalc Template
gcto.VOR StarImpress Template
gcto.WMF Windows Metafile
gcto.XLM Microsoft Excel Macro
gcto.XLT Microsoft Excel Template
gcto.XLTM Microsoft Excel XML Template
gcto.XLTX Microsoft Excel XML Template
gcto.XLW Microsoft Excel Workspace
gcto.XSPF XML Shareable Playlist Format
Types of Plugins
gcto.XPI Firefox Plugin
Types of Presentations
gcto.ODG ODF Drawing Presentation
gcto.ODP ODF Presentation
gcto.PPS Microsoft PowerPoint Show
gcto.PPSX Microsoft Open XML PowerPoint Show
gcto.PPT Microsoft PowerPoint Presentation
gcto.PPTM Microsoft Open XML Macro-Enabled PowerPoint Presentation
gcto.PPTX Microsoft Open XML PowerPoint Presentation
gcto.SDA StarDraw Drawing
gcto.SDD StarDraw Drawing
gcto.SDD StarImpress Presentation
gcto.SXD Microsoft OpenOffice.org 1.0 Drawing
gcto.SXI OpenOffice.org 1.0 Presentation
gcto.UOF Unified Office Format Presentation
gcto.UOP Unified Office Format Presentation
Types of Shell Scripts
gcto.AU3 AutoIt Script
gcto.BAT Windows Batch File
gcto.BSH Bash Shell Script
gcto.SH Unix Shell Script
Types of Source Code
gcto.ASAX ASP.Net Open XML Configuration File
gcto.ASP Active Server Page Source File
gcto.ASPX ASP.Net Open XML Source File
gcto.C C Source File
gcto.CGI Perl Source File
gcto.CPP C++ Source File
gcto.CS C# Source File
gcto.CSPROJ C# Project File
gcto.CSS Cascading Style Sheets Source File
gcto.CXX C++ Source File
gcto.H C Header File
gcto.HPP C++ Header File
gcto.HTA
gcto.HTM Hypertext Markup Language Source File
gcto/value/gcto Hypertext Markup Language Source File
gcto.JAVA JAVA Source File
gcto.JS JavaScript Source File
gcto.JSP JavaServer Pages Source File
gcto.MHT
gcto./value/gcto
gcto.PHP PHP Source File
gcto.PHP3 PHP3 Source File
gcto.PL Perl Source File
gcto.PM Perl Module
gcto.RC C++ Resource Compiler Script
gcto./value/gcto Server Side Includes/value/gcto File
gcto.SQL SQL Database Query
gcto.STM Server Side Includes/value/gcto File
gcto.VB Visual Basic .Net Source File
gcto.VBPROJ Visual Basic .Net Project File
gcto.VBS Visual Basic Script
gcto.XAML Extensible Application Markup Language
gcto.XML Extensible Markup Language
Types of Spreadsheets
gcto.123 IBM Lotus 1-2-3 Spreadsheet
gcto.DIF Data Interchange Format Document
gcto.ODS ODF Spreadsheet
gcto.PXL Pocket Excel Spreadsheet
gcto.SDC StarCalc Spreadsheet
gcto.SLK SYLK Spreadsheet
gcto.SXC OpenOffice.org 1.0 Spreadsheet
gcto.UOF Unified Office Format Spreadsheet
gcto.UOS Unified Office Format Spreadsheet
gcto.WB2 Quattro Pro Spreadsheet
gcto.WK1 Lotus 1-2-3 Spreadsheet
gcto.WKS Lotus 1-2-3 Spreadsheet
gcto.XLC Microsoft Excel Chart
gcto.XLS Microsoft Excel Spreadsheet
gcto.XLSB Microsoft Excel Binary Spreadsheet
gcto.XLSM Microsoft Open XML Macro-Enabled Excel Spreadsheet
gcto.XLSX Microsoft Open XML Excel Spreadsheet
Types of Videos
gcto.3G2 3G Mobile Phone Video
gcto.3GP 3G Mobile Phone Video
gcto.ASF Advanced Systems Format Video
gcto.AVI Audio Video Interleave
gcto.BIK Bink Video
gcto.BIN Binary DVD Video
gcto.DAT VCD Video
gcto.DIVX DivX Movie
gcto.DV Digital Video
gcto.FLV Flash Video
gcto.GXF General eXchange Format
gcto.M1V MPEG-1 Video
gcto.M2TS MPEG-2 Transport Stream Videos
gcto.M2V MPEG-2 Video
gcto.M4V MPEG-4 Video File
gcto.MKV Matroska Video Stream
gcto.MOV Apple QuickTime Movie
gcto.MP4 MPEG-4 Part 14 Multimedia Container
gcto.MPEG MPEG Video
gcto.MPEG1 MPEG-1 Video
gcto.MPEG2 MPEG-2 Video
gcto.MPEG4 MPEG-4 Video
gcto.MPG MPEG Video
gcto.MTS AVCHD Video File
gcto.MXF Material eXchange Format
gcto.OGM Ogg Multimedia Container File
gcto.RM RealMedia Streaming Media File
gcto.RMVB RealMedia Variable Bitrate Media File
gcto.SWF Adobe Flash Movie
gcto.TS DVD Video
gcto.VOB DVD Video Object
gcto.WMV Windows Media Video
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